Cycle-frame joint.



No. 662,848. Patented Nov; 27, I900.

CYCLE FRAME JOINT.

(Application filed Dec. 23, 1898.)

(No Modal.)

I VE HIY EDWARD G. WOOD, OF LIVERPOOL, ENGLAND.

CYCLE-FRAME JQINT.

SPECIFICATION forming part of Letters Patent No. 662,848, dated November27, 1900.

A licati fil d December 23,1898. serial No. 700,134. (No model-J T0 altwhom, it may concern.-

Be it known that I, EDWARD GREATBATOH WOOD, a subject of the Queen ofGreat Britain, residing at Liverpool, in the county of Lancaster,England, have invented certain new and useful Improvements inCycle-Frame Joints, of which the following is a specification.

This invention relates to joints for the tubular frames of cycles andother vehicles, and has for its object an easy method of building upcycle and other frames without brazing oremploying the application ofheat in any form and which, moreover, allows of the various parts beingfinished before building up, while the completed frame is considerablystronger than those constructed by the ordinary or well-known method ofbrazing the parts together.

In carrying out the invention as applied to cycle-frames I unite thetubes of the frame by means of sockets or unions. These receive the endsof the tubes and in some cases are split, so that they can be contractedand closed around the tubes and by'means of a binding device, to behereinafter described, are united firmly together.

Referring to the accompanying drawings, Figure 1 is a vertical sectionof a portion of the steering-head, showing one method of uniting thetubes to the sockets. Fig. 2 is a vertical section of a similar portionof the frame to Fig. 1, showing another method of uniting the tubes ofthe socket; and Fig. 3 is an underneath plan view of the same.

It will be observed that the figures show the invention applied to thesteering-head of a cycle-frame; but it must be understood that it can beapplied to any or all of the tubular connections.

Referring first to Fig. l, A is the socket to which the tube B isunited. The tube B is first inserted in the socket A, and then thesocket and tube together are cold-pressed into the shape shown in Fig.1, a depression D being thereby formed in the tube B and a correspondingdepression D in the socket A. A screw-thread is then cut in the outersurface of the depression in the socket A and a nut G is screwedthereon, the front part G of the nut being cone-shaped, so that as it istightened against the end of the depressed part it exerts a pressurethereon, causing the socket A to grip the tube Bmore tightly. By thismeans a firm joint is made without the necessity of brazing.

In the arrangement shown in Figs. 2 and 3 the socket B is split at O. Inother respects this construction is the same as that shown in Fig. 1.The advantage of this method of splitting the outer tube or socket isthat the parts A and B may be readily separated, if so desired, byunscrewing the nut G from off the socket and then exerting a pull on thepart B, thereby causing the socket A to enlarge its diameter, wideningthe split 0, and allowing the end of the tube B to pass through thedepressed portion D of the socket. As in the previous instance, theconed part G of the nut G when screwed up presses against the edge ofthe depression D in the socket and tightens it into the depression D inthe tube, thereby forming a rigid joint which, however, is capable ofbeing taken to pieces when so desired-for example, for convenience inpacking or to replace a faulty tube as it is evident that thisconstruction can be applied to all the tubes of a cycle or similarframe, thereby rendering the operation of brazing unnecessary and makingthe parts of the whole frame easily separable, so that any ordinaryperson could take the frame to pieces. In Figs. 2 and 3 of theaccompanying drawings only one split 0 is shown; but it is evident thattwo or more splits could be made in the socket without departing fromthe spirit of my invention.

I declarethat what I claim is- 1. A joint for cycles and other vehicles,comprising a socket and tube, a depression formed in the tube below thenormal contour thereof, a reduced end formed on the socket and adaptedto fit into said tube depression, screw-threads formed eXteriorly of thesaid reduced portion, and a nut adapted to screw thereon, said nuthaving a coned inner surface at one end adapted to bear against theshoulder on the socket formed at the reduced portion, substantially asdescribed.

2. A joint for cycles and other vehicles, comprising asplit socket and atube, a depression formed in the tube at a point intermediate itslength, a reduced end formed on the socket made smooth inside andprovided with threads on the outside, anda nut adapted In Witnesswhereof I have hereunto signed to be screwed on said threads and againstthe my name this 10th day of December, 1898, in :0 shoulder formed bythe reduced portion, the the presence of two subscribing Witnesses.structure bein such that the socket can be 5 sprung over th e end of thetube and its re- EDWARD WOOD duced end be brought into the depression ofI Witnesses: the tube for clamping, substantially as de- G. O. DYMOND,scribed. I W. H. BEESTON.

